Evidence map›Paper›PMID 20498317›Full record

ArticleAntimicrobial agents and chemotherapy2010

Mutational analysis of VIM-2 reveals an essential determinant for metallo-beta-lactamase stability and folding.

Luisa Borgianni, Julie Vandenameele, André Matagne, Luca Bini, Robert A Bonomo, Jean-Marie Frère, Gian Maria Rossolini, Jean-Denis Docquier

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
0.8field-weighted citation impact, top 33% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Article
  6. Emergence of Carbapenem-resistant Clinical Isolates ofJuntendo Iji zasshi = Juntendo medical journal · 2022
    Review
  7. Article
  8. Review
  9. Emergence of Carbapenem-Resistant Providencia rettgeri andAntimicrobial agents and chemotherapy · 2020
    Article
  10. Article
  11. 4-(Biomolecules · 2020
    Article
  12. Infection and immunity · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 3 countries.

Luisa BorgianniDipartimento di Biologia Molecolare, Università di Siena, Policlinico Le Scotte, II piano, V lotto, Viale Bracci 1, I-53100 Siena, Italy.
Julie Vandenameele
André Matagne
Luca Bini
Robert A Bonomo
Jean-Marie Frère
Gian Maria Rossolini
Jean-Denis Docquier
University of Siena · ITUniversity of Liège · BELouis Stokes Cleveland VA Medical Center · US

Funding

Understanding B-Lactam Resistance in Acinetobacter baumanniiR01AI072219 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI ROBERT A. BONOMO, Philip N. Rather · 2007 to 2026
$6.6M
Understanding ceftazidime resistance in SHV B-LactamasesR01AI063517 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI BONOMO, ROBERT A. · 2005 to 2023
$4.9M
NIAID NIH HHS R01 AI063517NIAID NIH HHS R01 AI072219
6 · The paper itself

Abstract

Metallo-beta-lactamase (MBL)-producing bacteria are emerging worldwide and represent a formidable threat to the efficacy of relevant beta-lactams, including carbapenems, expanded-spectrum cephalosporins, and beta-lactamase inactivator/beta-lactam combinations. VIM-2 is currently the most widespread MBL and represents a primary target for MBL inhibitor research, the clinical need for which is expected to further increase in the future. Using a saturation mutagenesis approach, we probed the importance of four residues (Phe-61, Ala-64, Tyr-67, and Trp-87) located close to the VIM-2 active site and putatively relevant to the enzyme activity based on structural knowledge of the enzyme and on structure-activity relationships of the subclass B1 MBLs. The ampicillin MIC values shown by the various mutants were affected very differently depending on the randomized amino acid position. Position 64 appeared to be rather tolerant to substitution, and kinetic studies showed that the A64W mutation did not significantly affect substrate hydrolysis or binding, representing an important difference from IMP-type enzymes. Phe-61 and Tyr-67 could be replaced with several amino acids without the ampicillin MIC being significantly affected, but in contrast, Trp-87 was found to be critical for ampicillin resistance. Further kinetic and biochemical analyses of W87A and W87F variants showed that this residue is apparently important for the structure and proper folding of the enzyme but, surprisingly, not for its catalytic activity. These data support the critical role of residue 87 in the stability and folding of VIM-2 and might have strong implications for MBL inhibitor design, as this residue would represent an ideal target for interaction with small molecules.

Indexed as

AmpicillinAmpicillin ResistanceAnti-Bacterial Agentsbeta-LactamasesDNA Mutational AnalysisEnzyme StabilityEscherichia coliKineticsMicrobial Sensitivity TestsModels, MolecularProtein ConformationProtein FoldingStructure-Activity RelationshipAmpicillinAnti-Bacterial Agentsbeta-lactamase bla(vim-2)beta-Lactamases

Identifiers

PMID20498317
PMCPMC2916320
OpenAlexW2097647469

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.